src/lib/libproc/tests, branch releng/12.2

MFC r360980:

2020-05-26T14:06:07+00:00

Re-enable proc_test:symbol_lookup after r360979.

PR:	244732

MFC r358887:

2020-05-07T20:27:32+00:00

Temporarily skip 2 failing tests after llvm10 import

PR:		244732
Sponsored by:	The FreeBSD Foundation

Detach from the child process before completing the test.

2018-07-27T20:34:15+00:00

Otherwise the child will receive SIGTRAP if the parent exits first.

Disable optimization of the libproc test program.

2018-07-21T22:10:28+00:00

Dead code elimination may remove symbols that are required by the tests.

Reported by:	Jenkins, via asomers
MFC after:	1 week

Add an envp argument to proc_create().

2017-12-03T16:50:16+00:00

This is needed to support dtrace's -x setenv option.

MFC after:	2 weeks

Eliminate the last user of basename_r() in the base system.

2017-12-01T10:25:52+00:00

In this case it's fairly easy to make use of basename().

Refine symtab sorting in libproc.

2017-11-21T16:03:21+00:00

Add some rules to more closely match what illumos does when an address
resolves to multiple symbols:
- prefer non-local symbols
- prefer symbols with fewer leading underscores and no leading '$'

Add some regression tests to verify these rules.

DIRDEPS_BUILD: Update dependencies.

2017-10-31T00:07:04+00:00

Sponsored by:	Dell EMC Isilon

Increase WARNS for libproc tests

2017-03-11T00:09:30+00:00

ATF tests have a default WARNS of 0, unlike other usermode programs.

Reviewed by:  ngie, julian
MFC after:    3 weeks
Sponsored by: Spectra Logic Corporation
Differential Revision:        https://reviews.freebsd.org/D9933

libproc: Match prefixes when looking up mapped object by name.

2016-12-06T04:20:32+00:00

When looking up an object by name, allow prefix matches if no direct match
is found. This allows one to, for example, match libc entry probes with:

 # dtrace -n 'pid$target:libc.so::entry' -c ./foo

instead of requiring "libc.so.7" or a glob.

Also remove proc_obj2map() as it currently just duplicates the
functionality of proc_name2map(). It's supposed to take a Solaris
link-map ID as a paramter, but support for this isn't implemented and
isn't required to support DTrace's pid provider.